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Core-shell bimetallic nanoparticles robustly fixed on the outermost surface of magnetic silica microspheres.


ABSTRACT: The major challenges in practically utilising the immense potential benefits of nanomaterials are controlling aggregation, recycling the nanomaterials, and fabricating well-defined nanoparticulate materials using innovative methods. We present a novel innovative synthetic strategy for core-shell bimetallic nanoparticles that are well-defined, ligand-free, and robustly fixed on the outermost surface of recyclable magnetic silica microspheres. The strategy includes seeding, coalescing the seeds to cores, and then growing shells from the cores on aminopropyl-functionalised silica microspheres so that the cores and aminopropyl moieties are robustly embedded in the shell materials. The representative Au-Ag bimetallic nanoparticles fixed on the microsphere showed excellent catalytic performance that remained consistent during repeated catalytic cycles.

SUBMITTER: Park HH 

PROVIDER: S-EPMC3603323 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Core-shell bimetallic nanoparticles robustly fixed on the outermost surface of magnetic silica microspheres.

Park Hye Hun HH   Woo Kyoungja K   Ahn Jae-Pyoung JP  

Scientific reports 20130101


The major challenges in practically utilising the immense potential benefits of nanomaterials are controlling aggregation, recycling the nanomaterials, and fabricating well-defined nanoparticulate materials using innovative methods. We present a novel innovative synthetic strategy for core-shell bimetallic nanoparticles that are well-defined, ligand-free, and robustly fixed on the outermost surface of recyclable magnetic silica microspheres. The strategy includes seeding, coalescing the seeds to  ...[more]

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